Embedded.java
| Index Score | ||
|---|---|---|
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org.apache.catalina.startup |
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Apache Tomcat 6 |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| JAVA0034 | JAVA0034 Missing braces in if statement |  |
| DECL_COMMENTS | Comments in declarations | |
| EXEC_COMMENTS | Comments in executable code | |
| SIZE | Size of the file in bytes | |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMMENTS | Comment lines | |
| CYCLOMATIC | Cyclomatic complexity | |
| LOOPS | Number of loops | |
| JAVA0083 | JAVA0083 Unnecessary instanceof test | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| LINES | Number of lines in the source file | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| LINE_COMMENT | Number of line comments | |
| JAVA0143 | JAVA0143 Synchronized method | |
| COMPARISONS | Number of comparison operators | |
| WHITESPACE | Number of whitespace lines | |
| JAVA0067 | JAVA0067 Array descriptor on identifier name | |
| BLOCKS | Number of blocks | |
| OPERATORS | Number of operators | |
| LOGICAL_LINES | Number of statements | |
| PROGRAM_LENGTH | Halstead program length | |
| ELOC | Effective lines of code | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0278 | JAVA0278 Unnecessary use of Boolean constructor | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| OPERANDS | Number of operands | |
| LOC | Lines of code | |
| EXITS | Procedure exits | |
| FUNCTIONS | Number of function declarations | |
| RETURNS | Number of return points from functions | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0082 | JAVA0082 Unnecessary widening cast | |
| PARAMS | Number of formal parameter declarations | |
| UNIQUE_OPERATORS | Number of unique operators | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0035 | JAVA0035 Missing braces in for statement | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| NEST_DEPTH | Maximum nesting depth | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.catalina.startup;
import java.io.File;
import java.io.IOException;
import java.net.InetAddress;
import java.util.HashMap;
import org.apache.catalina.Authenticator;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Engine;
import org.apache.catalina.Host;
import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleListener;
import org.apache.catalina.Loader;
import org.apache.catalina.Realm;
import org.apache.catalina.Valve;
import org.apache.catalina.connector.Connector;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.core.StandardEngine;
import org.apache.catalina.core.StandardHost;
import org.apache.catalina.core.StandardService;
import org.apache.catalina.loader.WebappLoader;
import org.apache.catalina.security.SecurityConfig;
import org.apache.catalina.util.LifecycleSupport;
import org.apache.catalina.util.StringManager;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.IntrospectionUtils;
import org.apache.tomcat.util.log.SystemLogHandler;
/**
* Convenience class to embed a Catalina servlet container environment
* inside another application. You must call the methods of this class in the
* following order to ensure correct operation.
*
* <ul>
* <li>Instantiate a new instance of this class.</li>
* <li>Set the relevant properties of this object itself. In particular,
* you will want to establish the default Logger to be used, as well
* as the default Realm if you are using container-managed security.</li>
* <li>Call <code>createEngine()</code> to create an Engine object, and then
* call its property setters as desired.</li>
* <li>Call <code>createHost()</code> to create at least one virtual Host
* associated with the newly created Engine, and then call its property
* setters as desired. After you customize this Host, add it to the
* corresponding Engine with <code>engine.addChild(host)</code>.</li>
* <li>Call <code>createContext()</code> to create at least one Context
* associated with each newly created Host, and then call its property
* setters as desired. You <strong>SHOULD</strong> create a Context with
* a pathname equal to a zero-length string, which will be used to process
* all requests not mapped to some other Context. After you customize
* this Context, add it to the corresponding Host with
* <code>host.addChild(context)</code>.</li>
* <li>Call <code>addEngine()</code> to attach this Engine to the set of
* defined Engines for this object.</li>
* <li>Call <code>createConnector()</code> to create at least one TCP/IP
* connector, and then call its property setters as desired.</li>
* <li>Call <code>addConnector()</code> to attach this Connector to the set
* of defined Connectors for this object. The added Connector will use
* the most recently added Engine to process its received requests.</li>
* <li>Repeat the above series of steps as often as required (although there
* will typically be only one Engine instance created).</li>
* <li>Call <code>start()</code> to initiate normal operations of all the
* attached components.</li>
* </ul>
*
* After normal operations have begun, you can add and remove Connectors,
* Engines, Hosts, and Contexts on the fly. However, once you have removed
* a particular component, it must be thrown away -- you can create a new one
* with the same characteristics if you merely want to do a restart.
* <p>
* To initiate a normal shutdown, call the <code>stop()</code> method of
* this object.
* <p>
* @see org.apache.catalina.startup.Catalina#main For a complete example
* of how Tomcat is set up and launched as an Embedded application.
*
* @author Craig R. McClanahan
* @version $Revision: 586738 $ $Date: 2007-10-20 10:57:18 -0400 (Sat, 20 Oct 2007) $
*/
public class Embedded extends StandardService implements Lifecycle {
private static Log log = LogFactory.getLog(Embedded.class);
// ----------------------------------------------------------- Constructors
/**
* Construct a new instance of this class with default properties.
*/
public Embedded() {
this(null);
}
/**
* Construct a new instance of this class with specified properties.
*
* @param realm Realm implementation to be inherited by all components
* (unless overridden further down the container hierarchy)
*/
public Embedded(Realm realm) {
super();
setRealm(realm);
setSecurityProtection();
}
// ----------------------------------------------------- Instance Variables
/**
* Is naming enabled ?
*/
protected boolean useNaming = true;
/**
* Is standard streams redirection enabled ?
*/
protected boolean redirectStreams = true;
/**
* The set of Engines that have been deployed in this server. Normally
* there will only be one.
*/
protected Engine engines[] = new Engine[0];
/**
* Custom mappings of login methods to authenticators
*/
protected HashMap authenticators;
/**
* Descriptive information about this server implementation.
*/
protected static final String info =
"org.apache.catalina.startup.Embedded/1.0";
/**
* The lifecycle event support for this component.
*/
protected LifecycleSupport lifecycle = new LifecycleSupport(this);
/**
* The default realm to be used by all containers associated with
* this compoennt.
*/
protected Realm realm = null;
/**
* The string manager for this package.
*/
protected static StringManager sm =
StringManager.getManager(Constants.Package);
/**
* Has this component been started yet?
*/
protected boolean started = false;
/**
* Use await.
*/
protected boolean await = false;
// ------------------------------------------------------------- Properties
/**
* Return true if naming is enabled.
*/
public boolean isUseNaming() {
return (this.useNaming);
}
/**
* Enables or disables naming support.
*
* @param useNaming The new use naming value
*/
public void setUseNaming(boolean useNaming) {
boolean oldUseNaming = this.useNaming;
this.useNaming = useNaming;
support.firePropertyChange("useNaming", new Boolean(oldUseNaming),
new Boolean(this.useNaming));
}
/**
* Return true if redirction of standard streams is enabled.
*/
public boolean isRedirectStreams() {
return (this.redirectStreams);
}
/**
* Enables or disables naming support.
*
* @param useNaming The new use naming value
*/
public void setRedirectStreams(boolean redirectStreams) {
boolean oldRedirectStreams = this.redirectStreams;
this.redirectStreams = redirectStreams;
support.firePropertyChange("redirectStreams", new Boolean(oldRedirectStreams),
new Boolean(this.redirectStreams));
}
/**
* Return the default Realm for our Containers.
*/
public Realm getRealm() {
return (this.realm);
}
/**
* Set the default Realm for our Containers.
*
* @param realm The new default realm
*/
public void setRealm(Realm realm) {
Realm oldRealm = this.realm;
this.realm = realm;
support.firePropertyChange("realm", oldRealm, this.realm);
}
public void setAwait(boolean b) {
await = b;
}
public boolean isAwait() {
return await;
}
public void setCatalinaHome( String s ) {
System.setProperty( "catalina.home", s);
}
public void setCatalinaBase( String s ) {
System.setProperty( "catalina.base", s);
}
public String getCatalinaHome() {
return System.getProperty("catalina.home");
}
public String getCatalinaBase() {
return System.getProperty("catalina.base");
}
// --------------------------------------------------------- Public Methods
/**
* Add a new Connector to the set of defined Connectors. The newly
* added Connector will be associated with the most recently added Engine.
*
* @param connector The connector to be added
*
* @exception IllegalStateException if no engines have been added yet
*/
public synchronized void addConnector(Connector connector) {
if( log.isDebugEnabled() ) {
log.debug("Adding connector (" + connector.getInfo() + ")");
}
// Make sure we have a Container to send requests to
if (engines.length < 1)
throw new IllegalStateException
(sm.getString("embedded.noEngines"));
/*
* Add the connector. This will set the connector's container to the
* most recently added Engine
*/
super.addConnector(connector);
}
/**
* Add a new Engine to the set of defined Engines.
*
* @param engine The engine to be added
*/
public synchronized void addEngine(Engine engine) {
if( log.isDebugEnabled() )
log.debug("Adding engine (" + engine.getInfo() + ")");
// Add this Engine to our set of defined Engines
Engine results[] = new Engine[engines.length + 1];
for (int i = 0; i < engines.length; i++)
results[i] = engines[i];
results[engines.length] = engine;
engines = results;
// Start this Engine if necessary
if (started && (engine instanceof Lifecycle)) {
try {
((Lifecycle) engine).start();
} catch (LifecycleException e) {
log.error("Engine.start", e);
}
}
this.container = engine;
}
/**
* Create, configure, and return a new TCP/IP socket connector
* based on the specified properties.
*
* @param address InetAddress to bind to, or <code>null</code> if the
* connector is supposed to bind to all addresses on this server
* @param port Port number to listen to
* @param secure true if the generated connector is supposed to be
* SSL-enabled, and false otherwise
*/
public Connector createConnector(InetAddress address, int port,
boolean secure) {
return createConnector(address != null? address.toString() : null,
port, secure);
}
public Connector createConnector(String address, int port,
boolean secure) {
String protocol = "http";
if (secure) {
protocol = "https";
}
return createConnector(address, port, protocol);
}
public Connector createConnector(InetAddress address, int port,
String protocol) {
return createConnector(address != null? address.toString() : null,
port, protocol);
}
public Connector createConnector(String address, int port,
String protocol) {
Connector connector = null;
if (address != null) {
/*
* InetAddress.toString() returns a string of the form
* "<hostname>/<literal_IP>". Get the latter part, so that the
* address can be parsed (back) into an InetAddress using
* InetAddress.getByName().
*/
int index = address.indexOf('/');
if (index != -1) {
address = address.substring(index + 1);
}
}
if (log.isDebugEnabled()) {
log.debug("Creating connector for address='" +
((address == null) ? "ALL" : address) +
"' port='" + port + "' protocol='" + protocol + "'");
}
try {
if (protocol.equals("ajp")) {
connector = new Connector("org.apache.jk.server.JkCoyoteHandler");
} else if (protocol.equals("memory")) {
connector = new Connector("org.apache.coyote.memory.MemoryProtocolHandler");
} else if (protocol.equals("http")) {
connector = new Connector();
} else if (protocol.equals("https")) {
connector = new Connector();
connector.setScheme("https");
connector.setSecure(true);
connector.setProperty("SSLEnabled","true");
// FIXME !!!! SET SSL PROPERTIES
} else {
connector = new Connector(protocol);
}
if (address != null) {
IntrospectionUtils.setProperty(connector, "address",
"" + address);
}
IntrospectionUtils.setProperty(connector, "port", "" + port);
} catch (Exception e) {
log.error("Couldn't create connector.");
}
return (connector);
}
/**
* Create, configure, and return a Context that will process all
* HTTP requests received from one of the associated Connectors,
* and directed to the specified context path on the virtual host
* to which this Context is connected.
* <p>
* After you have customized the properties, listeners, and Valves
* for this Context, you must attach it to the corresponding Host
* by calling:
* <pre>
* host.addChild(context);
* </pre>
* which will also cause the Context to be started if the Host has
* already been started.
*
* @param path Context path of this application ("" for the default
* application for this host, must start with a slash otherwise)
* @param docBase Absolute pathname to the document base directory
* for this web application
*
* @exception IllegalArgumentException if an invalid parameter
* is specified
*/
public Context createContext(String path, String docBase) {
if( log.isDebugEnabled() )
log.debug("Creating context '" + path + "' with docBase '" +
docBase + "'");
StandardContext context = new StandardContext();
context.setDocBase(docBase);
context.setPath(path);
ContextConfig config = new ContextConfig();
config.setCustomAuthenticators(authenticators);
((Lifecycle) context).addLifecycleListener(config);
return (context);
}
/**
* Create, configure, and return an Engine that will process all
* HTTP requests received from one of the associated Connectors,
* based on the specified properties.
*/
public Engine createEngine() {
if( log.isDebugEnabled() )
log.debug("Creating engine");
StandardEngine engine = new StandardEngine();
// Default host will be set to the first host added
engine.setRealm(realm); // Inherited by all children
return (engine);
}
/**
* Create, configure, and return a Host that will process all
* HTTP requests received from one of the associated Connectors,
* and directed to the specified virtual host.
* <p>
* After you have customized the properties, listeners, and Valves
* for this Host, you must attach it to the corresponding Engine
* by calling:
* <pre>
* engine.addChild(host);
* </pre>
* which will also cause the Host to be started if the Engine has
* already been started. If this is the default (or only) Host you
* will be defining, you may also tell the Engine to pass all requests
* not assigned to another virtual host to this one:
* <pre>
* engine.setDefaultHost(host.getName());
* </pre>
*
* @param name Canonical name of this virtual host
* @param appBase Absolute pathname to the application base directory
* for this virtual host
*
* @exception IllegalArgumentException if an invalid parameter
* is specified
*/
public Host createHost(String name, String appBase) {
if( log.isDebugEnabled() )
log.debug("Creating host '" + name + "' with appBase '" +
appBase + "'");
StandardHost host = new StandardHost();
host.setAppBase(appBase);
host.setName(name);
return (host);
}
/**
* Create and return a class loader manager that can be customized, and
* then attached to a Context, before it is started.
*
* @param parent ClassLoader that will be the parent of the one
* created by this Loader
*/
public Loader createLoader(ClassLoader parent) {
if( log.isDebugEnabled() )
log.debug("Creating Loader with parent class loader '" +
parent + "'");
WebappLoader loader = new WebappLoader(parent);
return (loader);
}
/**
* Return descriptive information about this Server implementation and
* the corresponding version number, in the format
* <code><description>/<version></code>.
*/
public String getInfo() {
return (info);
}
/**
* Remove the specified Context from the set of defined Contexts for its
* associated Host. If this is the last Context for this Host, the Host
* will also be removed.
*
* @param context The Context to be removed
*/
public synchronized void removeContext(Context context) {
if( log.isDebugEnabled() )
log.debug("Removing context[" + context.getPath() + "]");
// Is this Context actually among those that are defined?
boolean found = false;
for (int i = 0; i < engines.length; i++) {
Container hosts[] = engines[i].findChildren();
for (int j = 0; j < hosts.length; j++) {
Container contexts[] = hosts[j].findChildren();
for (int k = 0; k < contexts.length; k++) {
if (context == (Context) contexts[k]) {
found = true;
break;
}
}
if (found)
break;
}
if (found)
break;
}
if (!found)
return;
// Remove this Context from the associated Host
if( log.isDebugEnabled() )
log.debug(" Removing this Context");
context.getParent().removeChild(context);
}
/**
* Remove the specified Engine from the set of defined Engines, along with
* all of its related Hosts and Contexts. All associated Connectors are
* also removed.
*
* @param engine The Engine to be removed
*/
public synchronized void removeEngine(Engine engine) {
if( log.isDebugEnabled() )
log.debug("Removing engine (" + engine.getInfo() + ")");
// Is the specified Engine actually defined?
int j = -1;
for (int i = 0; i < engines.length; i++) {
if (engine == engines[i]) {
j = i;
break;
}
}
if (j < 0)
return;
// Remove any Connector that is using this Engine
if( log.isDebugEnabled() )
log.debug(" Removing related Containers");
while (true) {
int n = -1;
for (int i = 0; i < connectors.length; i++) {
if (connectors[i].getContainer() == (Container) engine) {
n = i;
break;
}
}
if (n < 0)
break;
removeConnector(connectors[n]);
}
// Stop this Engine if necessary
if (engine instanceof Lifecycle) {
if( log.isDebugEnabled() )
log.debug(" Stopping this Engine");
try {
((Lifecycle) engine).stop();
} catch (LifecycleException e) {
log.error("Engine.stop", e);
}
}
// Remove this Engine from our set of defined Engines
if( log.isDebugEnabled() )
log.debug(" Removing this Engine");
int k = 0;
Engine results[] = new Engine[engines.length - 1];
for (int i = 0; i < engines.length; i++) {
if (i != j)
results[k++] = engines[i];
}
engines = results;
}
/**
* Remove the specified Host, along with all of its related Contexts,
* from the set of defined Hosts for its associated Engine. If this is
* the last Host for this Engine, the Engine will also be removed.
*
* @param host The Host to be removed
*/
public synchronized void removeHost(Host host) {
if( log.isDebugEnabled() )
log.debug("Removing host[" + host.getName() + "]");
// Is this Host actually among those that are defined?
boolean found = false;
for (int i = 0; i < engines.length; i++) {
Container hosts[] = engines[i].findChildren();
for (int j = 0; j < hosts.length; j++) {
if (host == (Host) hosts[j]) {
found = true;
break;
}
}
if (found)
break;
}
if (!found)
return;
// Remove this Host from the associated Engine
if( log.isDebugEnabled() )
log.debug(" Removing this Host");
host.getParent().removeChild(host);
}
/*
* Maps the specified login method to the specified authenticator, allowing
* the mappings in org/apache/catalina/startup/Authenticators.properties
* to be overridden.
*
* @param authenticator Authenticator to handle authentication for the
* specified login method
* @param loginMethod Login method that maps to the specified authenticator
*
* @throws IllegalArgumentException if the specified authenticator does not
* implement the org.apache.catalina.Valve interface
*/
public void addAuthenticator(Authenticator authenticator,
String loginMethod) {
if (!(authenticator instanceof Valve)) {
throw new IllegalArgumentException(
sm.getString("embedded.authenticatorNotInstanceOfValve"));
}
if (authenticators == null) {
synchronized (this) {
if (authenticators == null) {
authenticators = new HashMap();
}
}
}
authenticators.put(loginMethod, authenticator);
}
// ------------------------------------------------------ Lifecycle Methods
/**
* Add a lifecycle event listener to this component.
*
* @param listener The listener to add
*/
public void addLifecycleListener(LifecycleListener listener) {
lifecycle.addLifecycleListener(listener);
}
/**
* Get the lifecycle listeners associated with this lifecycle. If this
* Lifecycle has no listeners registered, a zero-length array is returned.
*/
public LifecycleListener[] findLifecycleListeners() {
return lifecycle.findLifecycleListeners();
}
/**
* Remove a lifecycle event listener from this component.
*
* @param listener The listener to remove
*/
public void removeLifecycleListener(LifecycleListener listener) {
lifecycle.removeLifecycleListener(listener);
}
/**
* Prepare for the beginning of active use of the public methods of this
* component. This method should be called after <code>configure()</code>,
* and before any of the public methods of the component are utilized.
*
* @exception LifecycleException if this component detects a fatal error
* that prevents this component from being used
*/
public void start() throws LifecycleException {
if( log.isInfoEnabled() )
log.info("Starting tomcat server");
// Validate the setup of our required system properties
initDirs();
// Initialize some naming specific properties
initNaming();
// Validate and update our current component state
if (started)
throw new LifecycleException
(sm.getString("embedded.alreadyStarted"));
lifecycle.fireLifecycleEvent(START_EVENT, null);
started = true;
initialized = true;
// Start our defined Engines first
for (int i = 0; i < engines.length; i++) {
if (engines[i] instanceof Lifecycle)
((Lifecycle) engines[i]).start();
}
// Start our defined Connectors second
for (int i = 0; i < connectors.length; i++) {
connectors[i].initialize();
if (connectors[i] instanceof Lifecycle)
((Lifecycle) connectors[i]).start();
}
}
/**
* Gracefully terminate the active use of the public methods of this
* component. This method should be the last one called on a given
* instance of this component.
*
* @exception LifecycleException if this component detects a fatal error
* that needs to be reported
*/
public void stop() throws LifecycleException {
if( log.isDebugEnabled() )
log.debug("Stopping embedded server");
// Validate and update our current component state
if (!started)
throw new LifecycleException
(sm.getString("embedded.notStarted"));
lifecycle.fireLifecycleEvent(STOP_EVENT, null);
started = false;
// Stop our defined Connectors first
for (int i = 0; i < connectors.length; i++) {
if (connectors[i] instanceof Lifecycle)
((Lifecycle) connectors[i]).stop();
}
// Stop our defined Engines second
for (int i = 0; i < engines.length; i++) {
if (engines[i] instanceof Lifecycle)
((Lifecycle) engines[i]).stop();
}
}
// ------------------------------------------------------ Protected Methods
/** Initialize naming - this should only enable java:env and root naming.
* If tomcat is embeded in an application that already defines those -
* it shouldn't do it.
*
* XXX The 2 should be separated, you may want to enable java: but not
* the initial context and the reverse
* XXX Can we "guess" - i.e. lookup java: and if something is returned assume
* false ?
* XXX We have a major problem with the current setting for java: url
*/
protected void initNaming() {
// Setting additional variables
if (!useNaming) {
log.info( "Catalina naming disabled");
System.setProperty("catalina.useNaming", "false");
} else {
System.setProperty("catalina.useNaming", "true");
String value = "org.apache.naming";
String oldValue =
System.getProperty(javax.naming.Context.URL_PKG_PREFIXES);
if (oldValue != null) {
value = value + ":" + oldValue;
}
System.setProperty(javax.naming.Context.URL_PKG_PREFIXES, value);
if( log.isDebugEnabled() )
log.debug("Setting naming prefix=" + value);
value = System.getProperty
(javax.naming.Context.INITIAL_CONTEXT_FACTORY);
if (value == null) {
System.setProperty
(javax.naming.Context.INITIAL_CONTEXT_FACTORY,
"org.apache.naming.java.javaURLContextFactory");
} else {
log.debug( "INITIAL_CONTEXT_FACTORY alread set " + value );
}
}
}
protected void initDirs() {
String catalinaHome = System.getProperty("catalina.home");
if (catalinaHome == null) {
// Backwards compatibility patch for J2EE RI 1.3
String j2eeHome = System.getProperty("com.sun.enterprise.home");
if (j2eeHome != null) {
catalinaHome=System.getProperty("com.sun.enterprise.home");
} else if (System.getProperty("catalina.base") != null) {
catalinaHome = System.getProperty("catalina.base");
} else {
// Use IntrospectionUtils and guess the dir
catalinaHome = IntrospectionUtils.guessInstall
("catalina.home", "catalina.base", "catalina.jar");
if (catalinaHome == null) {
catalinaHome = IntrospectionUtils.guessInstall
("tomcat.install", "catalina.home", "tomcat.jar");
}
}
}
// last resort - for minimal/embedded cases.
if(catalinaHome==null) {
catalinaHome=System.getProperty("user.dir");
}
if (catalinaHome != null) {
File home = new File(catalinaHome);
if (!home.isAbsolute()) {
try {
catalinaHome = home.getCanonicalPath();
} catch (IOException e) {
catalinaHome = home.getAbsolutePath();
}
}
System.setProperty("catalina.home", catalinaHome);
}
if (System.getProperty("catalina.base") == null) {
System.setProperty("catalina.base",
catalinaHome);
} else {
String catalinaBase = System.getProperty("catalina.base");
File base = new File(catalinaBase);
if (!base.isAbsolute()) {
try {
catalinaBase = base.getCanonicalPath();
} catch (IOException e) {
catalinaBase = base.getAbsolutePath();
}
}
System.setProperty("catalina.base", catalinaBase);
}
String temp = System.getProperty("java.io.tmpdir");
if (temp == null || (!(new File(temp)).exists())
|| (!(new File(temp)).isDirectory())) {
log.error(sm.getString("embedded.notmp", temp));
}
}
protected void initStreams() {
if (redirectStreams) {
// Replace System.out and System.err with a custom PrintStream
SystemLogHandler systemlog = new SystemLogHandler(System.out);
System.setOut(systemlog);
System.setErr(systemlog);
}
}
// -------------------------------------------------------- Private Methods
/**
* Set the security package access/protection.
*/
protected void setSecurityProtection(){
SecurityConfig securityConfig = SecurityConfig.newInstance();
securityConfig.setPackageDefinition();
securityConfig.setPackageAccess();
}
}
The table below shows all metrics for Embedded.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 100.00 | Number of blocks | |
| BLOCK_COMMENT | 38.00 | Number of block comment lines | |
| COMMENTS | 339.00 | Comment lines | |
| COMMENT_DENSITY | 0.91 | Comment density | |
| COMPARISONS | 72.00 | Number of comparison operators | |
| CYCLOMATIC | 127.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 46.00 | Comments in declarations | |
| DOC_COMMENT | 268.00 | Number of javadoc comment lines | |
| ELOC | 374.00 | Effective lines of code | |
| EXEC_COMMENTS | 28.00 | Comments in executable code | |
| EXITS | 62.00 | Procedure exits | |
| FUNCTIONS | 38.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 83.36 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 84.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 31.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 1.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 1.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 6.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 4.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 2.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 1.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 1.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 1.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 1.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 10.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 0.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 12.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 5.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 31.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 1.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 0.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 1.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 9.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 4.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 997.00 | Number of lines in the source file | |
| LINE_COMMENT | 33.00 | Number of line comments | |
| LOC | 461.00 | Lines of code | |
| LOGICAL_LINES | 238.00 | Number of statements | |
| LOOPS | 14.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 1042.00 | Number of operands | |
| OPERATORS | 2052.00 | Number of operators | |
| PARAMS | 33.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 3094.00 | Halstead program length | |
| PROGRAM_VOCAB | 377.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 51.00 | Number of return points from functions | |
| SIZE | 31938.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 325.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 52.00 | Number of unique operators | |
| WHITESPACE | 197.00 | Number of whitespace lines | |